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Saturday, July 18, 2020 | History

2 edition of Even-aged management found in the catalog.

Even-aged management

David W Hann

Even-aged management

basic managerial questions and available or potential techniques for answering them

by David W Hann

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Published by Intermountain Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service in Ogden, Utah .
Written in English

    Subjects:
  • Forest management -- United States

  • Edition Notes

    StatementDavid W. Hann, J. Douglas Brodie
    SeriesUSDA Forest Service general technical report INT -- 83, General technical report INT -- 83
    ContributionsBrodie, J. Douglas 1938-, Intermountain Forest and Range Experiment Station (Ogden, Utah)
    The Physical Object
    Pagination29 p. :
    Number of Pages29
    ID Numbers
    Open LibraryOL13603586M

    Management of ponderosa pine in even-aged stands in the Black Hills by Alexander, Robert R. cn ; Edminster, Carleton B. cn ; Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) cn. The essential modern decision methods used in the scientific management of forests are described using basic algebra, computer spreadsheets, and numerous examples and applications. Balanced treatment is given throughout the book to the ecological and economic impacts of alternative management decisions in both even-aged and uneven-aged forests.

    for a variety of future management options). • Considers and attempts to minimize risks from stand-damaging agents such as insects, disease, and windthrow. Even-aged and Uneven-aged Stands. Even-aged stands generally have one age class, although two age classes can be found in some two-layered natural or managed stands. For example, a possible result of our project is that NHF management could change from uneven-aged to even-aged systems over considerable geographic extents. Upper management concerns about this change may include impacts on long-term timber supply, the health of forestry-dependent communities, and allocation of resources for things like timber.

    In even-aged forest management, forest growth can be thought of as a cycle or rotation,much like a corn field except with a longer time frame. A new forest stand is established, the trees are grown to maturity (usually financial maturity rather than biological maturity), the trees are all . Clearly, specifying the silvicultural system for a particular stand is an important step. Even-aged management is perhaps the simplest approach in many respects, even though it constitutes a major disturbance of the site. Conversely, uneven-aged management is outwardly appealing because it leaves the site in a continuous green state.


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Even-aged management by David W Hann Download PDF EPUB FB2

Timber management in an even-aged forest is considered to be economically efficient since major operations require only one entry into a stand. Final harvests involve removing nearly all trees depending upon the regeneration method chosen. In an even-aged forest, foresters also have the op-portunity to replant genetically improved seedlings which.

Repeatable management regimes beginning with bare land are the key to using SEV in a straightforward manner. This may not hold true in all cases of forest management, particularly in cases of uneven-aged management or in cases of even-aged management where we do not begin with bare land.

In these other cases, an aggregate of NPV and SEV. The advent of more flexible stand management principles, such as Continuous Cover Forestry or Any-aged Management, calls for more careful economic analysis of stand management options. It is usually assumed in even-aged management that the economic analysis of one rotation can be done without any dependence to a previous or subsequent by: 1.

A decision variable such as S1R1 may represent stand 1, management regime 1, and include outcomes and associated conditions throughout the plan’s time horizon if areas of the stand are assigned this management regime. Even-aged management book In even-aged stands, the decision variable will often include the timing of the final harvests and associated outcomes and.

COVID Resources. Reliable information about the coronavirus (COVID) is available from the World Health Organization (current situation, international travel).Numerous and frequently-updated resource results are available from this ’s WebJunction has pulled together information and resources to assist library staff as they consider how to handle coronavirus.

An illustration of the two forest management systems to be compared in this study: the even-aged (a) and uneven-aged (b) forest stand level, even-aged management comprises a clear and repetitive cycle of distinct phases, including the regeneration, growing, and thinning, and final harvesting where typically a low number of live retention trees are leaf on the clear.

Chapter 4 discusses not only the science of un-even aged management integrated with fire in the Southern pines; but also the ART of practicing this type of management from a man who has spent a life time doing it. I recommend it to land managers and Forestry and Wildlife professionals.

It is without a doubt one of the best books that I have Reviews: 9. Management was optimized by maximizing the total net present value (NPV) of the three benefits in a steady-state situation.

The currently recommended type of even-aged management was also included in the comparisons. Uneven-aged management was the best in terms of the total NPV and with respect to bilberry benefits (NPV of bilberry harvesting).

Smith's book has been studied by foresters for decades and used as a proven, practical and widely accepted guide at the point where a timber harvest is necessary and where natural or artificial regeneration is the desired replacement.

Methods to Use When Even-Aged Management Is Preferred. The Clearcutting Method - When cutting all trees. Clearcutting, seed tree, and shelterwood are the three even-aged harvest methods proven to work in Oregon forest types. Many of Oregon’s native conifer and hardwood species are shade intolerant, and young trees establish and thrive under the open conditions of the even-aged management methods.

Title. Management of ponderosa pine in even-aged stands in the Southwest / Related Titles. Series: Research paper RM, By. Alexander, Robert R. Edminster, Carleton B.

Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) Type. Rapid computation of yield tables for managed, even-aged timber stands. Fort Collins, Colo.: Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture, (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors.

Log driving is a means of moving logs (sawn tree trunks) from a forest to sawmills and pulp mills downstream using the current of a river. It was the main transportation method of the early logging industry in Europe and North America.

Two perennial problems in the management of uneven-aged forests are considered: (i) determination of the optimal sustainable distribution of trees by diameter class, i.e.

stand structure, for a given initial stocking level, and (ii) the optimal cutting schedule for the conversion of an irregular stand to a target is shown, using examples for northern hardwood stands in Wisconsin. The observation period lasted for about 20 years. The authors concluded that in the conditions of southern Finland the even-aged forest management most likely produces more wood in a long term than uneven-aged forest management, and the growth rate of even-aged stands is likely to be higher than the growth rate of uneven-aged stands.

It considers management approaches for specific habitats including even-aged and uneven-aged systems, riparian areas, and dead wood and highlights those approaches that will conserve and manage biodiversity. The author discusses assessment and prioritization policies, monitoring techniques, and ethical and legal issues that can have worldwide Reviews: 5.

This stand is an even aged natural year old red pine stand. The red pine average 16” DBH and 65 feet to a 4” top. Total basal area is ft2/acre. Red pine, white pine, jack pine, aspen, red oak, paper birch and sugar maple are the main trees species.

There are pockets of 50 year old hardwoodswhere they were harvested in the ’s. Background and definitions for density control in selection stands of loblolly-shortleaf pine (Pinus taeda, P.

echinata) and longleaf pine (P. palustris) are discussed. Concepts and contrasts with even-aged techniques are graphically illustrated. Uneven-aged management techniques are presented in the context of three methods of regulating the cut in uneven-aged stands: volume.

Even-aged management leads to the develop-ment of stands of various ages at the landscape level that will. have very different susceptibilities to windthrow. A full comparison.

Shortlisted for the TWS Wildlife Publication Awards in the authored book categoryIn recent years, conflicts between ecological conservation and economic growth forced a reassessment of the motivations and goals of wildlife and forestry management. Focus shifted from game and commodity management to biodiversity conservation and ecological fore.

Results: We show that the scenarios have widely different outcomes in terms of the studied indicators, and that differences in indicator outcome were largely due to different distributions in management regimes, i.e., the proportion of forest left unmanaged or under even-aged management or continuous cover forest, as well as specific retention.The development of even-aged plantation forests: An exercise in forest stand dynamics Article (PDF Available) in Journal of biological education 42(4) September with Reads.Title.

Management of ponderosa pine in even-aged stands in the Black Hills / Related Titles. Series: Research paper RM, By. Alexander, Robert R. Edminster, Carleton B. Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) Type.